I've gotten this message several times since getting my phone a week ago. I have all the same apps downloaded that I had on my Galaxy S3 and never had a problem. Any suggestions?
Welcome to Android Central! Is it coming up on the notification bar, or an official-looking toast notification (a notification box that disappears on its own)? Or does it look more like a browser popup window, along with some link or recommendation to install some bogus memory cleaner app?